| Date | IP Address |
| 2018-05-16 | 52.22.97.255 (ClassC) |
| 2025-11-21 | 54.82.201.33 (ClassC) |
| Date | Domain | IP |
| api3.libcal.com | 2025-05-28 | 54.82.201.33 |
| api3-ca.libcal.com | 2025-05-14 | 35.182.25.241 |
| vu-edu-au.beta.libcal.com | 2025-11-21 | 13.237.238.199 |
| csusb.libcal.com | 2025-11-21 | 18.214.47.102 |
| catawbacountync.libcal.com | 2025-11-21 | 18.235.213.250 |
| rowancountync.libcal.com | 2025-11-21 | 18.214.47.102 |
| elpaso-ttuhsc.libcal.com | 2025-11-21 | 54.82.201.33 |
| bond.libcal.com | 2025-11-21 | 13.237.238.199 |
| krls-brainerd.libcal.com | 2025-11-21 | 18.235.213.250 |
| sunymaritime.libcal.com | 2025-11-21 | 54.82.201.33 |
| honors-wayne.libcal.com | 2025-11-21 | 18.214.47.102 |
| nwrl.libcal.com | 2025-11-21 | 54.82.201.33 |
| rasmussen.libcal.com | 2025-11-21 | 18.214.47.102 |
| law-upenn.libcal.com | 2025-11-21 | 18.214.47.102 |
| stevenson.libcal.com | 2025-11-21 | 18.213.162.18 |
| csun.libcal.com | 2025-11-21 | 18.214.47.102 |
| uwyo.libcal.com | 2025-11-21 | 18.213.162.18 |
| unfwrites.libcal.com | 2025-11-21 | 18.214.47.102 |
| bccls.libcal.com | 2024-11-15 | 18.214.47.102 |
| static-assets-us.libcal.com | 2025-05-25 | 3.163.158.14 |
| fsu.libcal.com | 2025-11-21 | 54.82.201.33 |
| nyu.libcal.com | 2025-11-21 | 18.235.213.250 |
| chandlerlibrary.libcal.com | 2025-11-21 | 54.82.201.33 |
| anokacounty.libcal.com | 2024-09-22 | 18.235.213.250 |